Home / 2,818.40-4,228.60-1,258.26

Finding the Fourth Proportional to 2,818.40, 4,228.60 and 1,258.26

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Solution

The fourth proportional to 2,818.40, 4,228.60 and 1,258.26 is: 1,887.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,818.40 : 4,228.60 = 1,258.26 : x
  2. Step 2: Convert to fraction form
    2,818.40/4,228.60 = 1,258.26/x
  3. Step 3: Cross multiply
    2,818.40x = 4,228.60 × 1,258.26
  4. Step 4: Simplify right side
    2,818.40x = 5,320,678.24
  5. Step 5: Solve for x
    x = 5,320,678.24/2,818.40
  6. Step 6: Final answer
    x = 1,887.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.